Quick answers
- Does Carsten R. Hamann accept Medicare assignment?
- Yes. Medicare's clinician data says Carsten R. Hamann accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Carsten R. Hamann see?
- In 2024, CMS data shows 841 Original Medicare patients and 12,912 services for Carsten R. Hamann. This counts Original Medicare only and measures volume, not quality.
- What is Carsten R. Hamann's NPI number?
- 1538546957. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Carsten R. Hamann, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 841 |
|---|---|
| Services billed to Medicare | 12,912 |
| Different services or procedures | 81 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Aminolevulinic acid hcl for topical administration, 10% gel, 10 mg (J7345)4,800 services
- Test for allergy using skin patch (95044)1,852 services
- Destruction of precancer skin growth, 2-14 growths (17003)1,740 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)777 services
- Destruction of precancer skin growth, 1 growth (17000)530 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol74%
- High blood pressure66%
- Arthritis42%
- Ischemic heart disease27%
- Diabetes20%
- Chronic kidney disease20%
Hospitals where Carsten R. Hamann works
Medicare's Facility Affiliation Data lists Carsten R. Hamann at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Mary Hitchcock Memorial HospitalLebanon, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 300003
Practice locations
Addresses where Carsten R. Hamann is enrolled with Medicare (CMS data updated October 2, 2026).
- 1 Medical Ctr DrLebanon, NH 03756 (603) 650‑5000
- 18 Old Etna RdLebanon, NH 03766 (603) 650‑4000
- 2150 S Dobson Rd, Suite 1Mesa, AZ 85202 (480) 820‑9774
- 4425 E Agave Rd, Suite 148Phoenix, AZ 85044 (480) 704‑7546
Group practices
Medicare enrollment lists Carsten R. Hamann as a member of these groups (CMS data updated October 2, 2026).
- Mary Hitchcock Memorial Hospital1,280 clinicians in the group
- Saguaro Dermatology Associates LLC13 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Lebanon
Clinicians with the same Medicare primary specialty in Lebanon, NH — not a recommendation.
Other clinicians in Mary Hitchcock Memorial Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538546957 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians